Water-indicator for steam-boilers



(No Model.)

L. MERTENS.

WATER INDICATOR FOR STEAM BOILERS. No. 335,139. Patented Feb. 2, 1886.

Atlesl. 122 Vendor n. PETERS, gm phor. Washington. D. c.

UNITED STATES PATENT Uremic.

LOUIS MERTENS, OF ERIE, PENNSYLVANIA.

WATER-INDICATOR FOR STEAM-BOILERS.

SPECIFICATION forming part 01 Letters Patent No. 335,139, dated February 2, 1886.

Application filed September 1. 1885. Serial No. 175,916. (No model.) i

To all whom it may concern:

Be it known that I, LOUIS MERTENS, a citizen of the United States, residing at Erie, in the county of Erie and State of Pennsylvania, have invented certain new and useful Improvements in Water-Indicators for Steam- Boilers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to water-indicators for steam-boilers; and it consists in certain improvements in the construction thereof, as will be hereinafterfully described, and pointed out in the claims.

My device is illustrated in the accompanying drawings, as follows:

Figure 1 is a side elevation of a steamboiler with my device attached thereto. Fig. 2 is a horizontal section of the device on the line a: x in Fig. 1.

A is the steam-boiler.

A A are pipes leading from above and below the water-line, respectively, to my new water-indicator device.

B represents the body of my device, which is composed of the shell B and cover B which is bolted to the shell by bolts 1), and any common packing is used in the joint.

0 is a float-ball on an arm, 0, which extends from a pivot, 0 These last named parts are all in the body 13, which I call the fioat-chamber.

(l is a stem extending out of the body from the pivot C 0* is an index on the stem 0 which lies parallel with the float-arm G, and points to a dial, B on the cover B, and thus indicates the waterline.

D is a frame which holds the pivot 0 and is secured to the cover B by a bolt, E.

I is an alarm-whistle on the boiler.

I is the lever for opening the steam-valve leading to the whistle.

H is a weight, and H and H are connections attaching the weight to the lever I.

G is a trip-bar which is pivoted at g in a slot therein, and its other end rests on a lug,

1 The weight H is suspended from said trip- On the index 0, or on its shaft 0 as desired, there is an arm, 0, so adjusted that when the index points to or near to I on the dial it will come in contact with the trip-bar G, and push its loose end off of the lug g, and thus drop the weight H, which will pull down on the lever Iand open the steam-valve, and thus sound the whistle.

Of course, it is obvious that any kind of an alarm may be used in place of the whistle, and such an alarm may be sprung by the arm a on the index 0 in various Ways. Any ordinary mechanic could quickly devise many alternative constructions for this purpose.

It will be observed that the shell B can be attached to the connecting-pipes and adjusted in proper position before the cover need be put on, and that the float may be pivoted in the frame D and said frame put in place and secured to the cover by the bolt E before the cover is put onto the shell.

The index and dial will show at any time the height of water in the boiler, and if the water gets below the danger-point the alarm will be sprung.

What I claim as new is- 1. In a water-indicator for steam-boilers, the combination, substantially as set forth, of the float-chamber B, the pivoted float O, the protruding stem 0 connected with the pivot of said float, the index 0, attached to said stem, the arm 0, attached to said stem, and an alarm device arranged, substantially as shown, to be sprung by said arm 0.

2. In a water-indicator for steam-boilers,

the combination, substantially as set forth, of the float-chamber B, the cover B with frame D, attached thereto, and a float pivoted in said frame D, and havinga stem extending through the said cover B In testimony whereof I affiX my signature in presence of two witnesses.

LOUIS MERTENS. 

